Catheter shape control by collapsible inner tubular member

Details Catheter shape control by collapsible inner tubular member Catheter shape control by collapsible inner tubular member

1995-10-10

1997-05-27

Buiz, Michael Powell

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

609283, 128772, 607122, 138120, 138DIG8, A61M 2500

Patent

active

056327340

ABSTRACT:
A composite catheter is formed by the combination of a catheter body and a tubular member insertable or secured inside the catheter body. The tubular member contains a series of relatively rigid segments alternating with flexible, collapsible segments which permit the rigid segments to effectively stack against one another when the tubular member is compressed axially. The shape that results when the rigid segments are forced together differs from that of the shape memory of the catheter body in certain embodiments of the invention, and changing the tubular member from a relaxed condition to the compressed condition inside the catheter body can therefore cause a change in shape of the catheter body.

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